crux » crutch

The crutch of the matter is to abstract the real world problem to the point where we have all possible states of all variables in the equation. (Slashdot comment, June 7, 2002)

This drug is to be made by poorly paid workers who cannot buy what they make and is to be sold to once highly paid workers who have lost their jobs. That is the crutch of the whole matter. (Poten & Partners Market Opinions, Oct. 17, 2003)